78365132 has 12 divisors (see below), whose sum is σ = 137245080. Its totient is φ = 39152256.

The previous prime is 78365107. The next prime is 78365159. The reversal of 78365132 is 23156387.

It is a super-2 number, since 2×78365132² = 12282187826754848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78365092 and 78365101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (11437090).

Almost surely, 2^78365132 is an apocalyptic number.

It is an amenable number.

78365132 is a deficient number, since it is larger than the sum of its proper divisors (58879948).

78365132 is a wasteful number, since it uses less digits than its factorization.

78365132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160 (or 15158 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 78365132 is about 8852.4082599031. The cubic root of 78365132 is about 427.9315332877.

The spelling of 78365132 in words is "seventy-eight million, three hundred sixty-five thousand, one hundred thirty-two".